1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) 2 // 3 // This file is provided under a dual BSD/GPLv2 license. When using or 4 // redistributing this file, you may do so under either license. 5 // 6 // Copyright(c) 2023 Advanced Micro Devices, Inc. 7 // 8 // Authors: Syed Saba kareem <syed.sabakareem@amd.com> 9 /* 10 * Hardware interface for ACP7.0 block 11 */ 12 13 #include <linux/platform_device.h> 14 #include <linux/module.h> 15 #include <linux/err.h> 16 #include <linux/io.h> 17 #include <sound/pcm_params.h> 18 #include <sound/soc.h> 19 #include <sound/soc-dai.h> 20 #include <linux/dma-mapping.h> 21 #include <linux/pm_runtime.h> 22 #include <linux/pci.h> 23 #include "amd.h" 24 #include "acp-mach.h" 25 26 #define DRV_NAME "acp_asoc_acp70" 27 28 static struct acp_resource rsrc = { 29 .offset = 0, 30 .no_of_ctrls = 2, 31 .irqp_used = 1, 32 .soc_mclk = true, 33 .irq_reg_offset = 0x1a00, 34 .i2s_pin_cfg_offset = 0x1440, 35 .i2s_mode = 0x0a, 36 .scratch_reg_offset = 0x12800, 37 .sram_pte_offset = 0x03802800, 38 }; 39 40 static struct snd_soc_acpi_mach snd_soc_acpi_amd_acp70_acp_machines[] = { 41 { 42 .id = "AMDI0029", 43 .drv_name = "acp70-acp", 44 }, 45 {}, 46 }; 47 48 static struct snd_soc_dai_driver acp70_dai[] = { 49 { 50 .name = "acp-i2s-sp", 51 .id = I2S_SP_INSTANCE, 52 .playback = { 53 .stream_name = "I2S SP Playback", 54 .rates = SNDRV_PCM_RATE_8000_96000, 55 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | 56 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE, 57 .channels_min = 2, 58 .channels_max = 8, 59 .rate_min = 8000, 60 .rate_max = 96000, 61 }, 62 .capture = { 63 .stream_name = "I2S SP Capture", 64 .rates = SNDRV_PCM_RATE_8000_48000, 65 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | 66 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE, 67 .channels_min = 2, 68 .channels_max = 2, 69 .rate_min = 8000, 70 .rate_max = 48000, 71 }, 72 .ops = &asoc_acp_cpu_dai_ops, 73 }, 74 { 75 .name = "acp-i2s-bt", 76 .id = I2S_BT_INSTANCE, 77 .playback = { 78 .stream_name = "I2S BT Playback", 79 .rates = SNDRV_PCM_RATE_8000_96000, 80 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | 81 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE, 82 .channels_min = 2, 83 .channels_max = 8, 84 .rate_min = 8000, 85 .rate_max = 96000, 86 }, 87 .capture = { 88 .stream_name = "I2S BT Capture", 89 .rates = SNDRV_PCM_RATE_8000_48000, 90 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | 91 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE, 92 .channels_min = 2, 93 .channels_max = 2, 94 .rate_min = 8000, 95 .rate_max = 48000, 96 }, 97 .ops = &asoc_acp_cpu_dai_ops, 98 }, 99 { 100 .name = "acp-i2s-hs", 101 .id = I2S_HS_INSTANCE, 102 .playback = { 103 .stream_name = "I2S HS Playback", 104 .rates = SNDRV_PCM_RATE_8000_96000, 105 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | 106 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE, 107 .channels_min = 2, 108 .channels_max = 8, 109 .rate_min = 8000, 110 .rate_max = 96000, 111 }, 112 .capture = { 113 .stream_name = "I2S HS Capture", 114 .rates = SNDRV_PCM_RATE_8000_48000, 115 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | 116 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE, 117 .channels_min = 2, 118 .channels_max = 8, 119 .rate_min = 8000, 120 .rate_max = 48000, 121 }, 122 .ops = &asoc_acp_cpu_dai_ops, 123 }, 124 { 125 .name = "acp-pdm-dmic", 126 .id = DMIC_INSTANCE, 127 .capture = { 128 .rates = SNDRV_PCM_RATE_8000_48000, 129 .formats = SNDRV_PCM_FMTBIT_S32_LE, 130 .channels_min = 2, 131 .channels_max = 2, 132 .rate_min = 8000, 133 .rate_max = 48000, 134 }, 135 .ops = &acp_dmic_dai_ops, 136 }, 137 }; 138 139 static int acp_acp70_audio_probe(struct platform_device *pdev) 140 { 141 struct device *dev = &pdev->dev; 142 struct acp_chip_info *chip; 143 struct acp_dev_data *adata; 144 struct resource *res; 145 146 chip = dev_get_platdata(&pdev->dev); 147 if (!chip || !chip->base) { 148 dev_err(&pdev->dev, "ACP chip data is NULL\n"); 149 return -ENODEV; 150 } 151 152 if (chip->acp_rev != ACP70_DEV) { 153 dev_err(&pdev->dev, "Un-supported ACP Revision %d\n", chip->acp_rev); 154 return -ENODEV; 155 } 156 157 adata = devm_kzalloc(dev, sizeof(struct acp_dev_data), GFP_KERNEL); 158 if (!adata) 159 return -ENOMEM; 160 161 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "acp_mem"); 162 if (!res) { 163 dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n"); 164 return -ENODEV; 165 } 166 167 adata->acp_base = devm_ioremap(&pdev->dev, res->start, resource_size(res)); 168 if (!adata->acp_base) 169 return -ENOMEM; 170 171 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "acp_dai_irq"); 172 if (!res) { 173 dev_err(&pdev->dev, "IORESOURCE_IRQ FAILED\n"); 174 return -ENODEV; 175 } 176 177 adata->i2s_irq = res->start; 178 adata->dev = dev; 179 adata->dai_driver = acp70_dai; 180 adata->num_dai = ARRAY_SIZE(acp70_dai); 181 adata->rsrc = &rsrc; 182 adata->machines = snd_soc_acpi_amd_acp70_acp_machines; 183 adata->platform = ACP70; 184 adata->flag = chip->flag; 185 acp_machine_select(adata); 186 187 dev_set_drvdata(dev, adata); 188 acp_enable_interrupts(adata); 189 acp_platform_register(dev); 190 pm_runtime_set_autosuspend_delay(&pdev->dev, ACP_SUSPEND_DELAY_MS); 191 pm_runtime_use_autosuspend(&pdev->dev); 192 pm_runtime_mark_last_busy(&pdev->dev); 193 pm_runtime_set_active(&pdev->dev); 194 pm_runtime_enable(&pdev->dev); 195 return 0; 196 } 197 198 static void acp_acp70_audio_remove(struct platform_device *pdev) 199 { 200 struct device *dev = &pdev->dev; 201 struct acp_dev_data *adata = dev_get_drvdata(dev); 202 203 acp_disable_interrupts(adata); 204 acp_platform_unregister(dev); 205 pm_runtime_disable(&pdev->dev); 206 } 207 208 static int __maybe_unused acp70_pcm_resume(struct device *dev) 209 { 210 struct acp_dev_data *adata = dev_get_drvdata(dev); 211 struct acp_stream *stream; 212 struct snd_pcm_substream *substream; 213 snd_pcm_uframes_t buf_in_frames; 214 u64 buf_size; 215 216 spin_lock(&adata->acp_lock); 217 list_for_each_entry(stream, &adata->stream_list, list) { 218 if (stream) { 219 substream = stream->substream; 220 if (substream && substream->runtime) { 221 buf_in_frames = (substream->runtime->buffer_size); 222 buf_size = frames_to_bytes(substream->runtime, buf_in_frames); 223 config_pte_for_stream(adata, stream); 224 config_acp_dma(adata, stream, buf_size); 225 if (stream->dai_id) 226 restore_acp_i2s_params(substream, adata, stream); 227 else 228 restore_acp_pdm_params(substream, adata); 229 } 230 } 231 } 232 spin_unlock(&adata->acp_lock); 233 return 0; 234 } 235 236 static const struct dev_pm_ops acp70_dma_pm_ops = { 237 SET_SYSTEM_SLEEP_PM_OPS(NULL, acp70_pcm_resume) 238 }; 239 240 static struct platform_driver acp70_driver = { 241 .probe = acp_acp70_audio_probe, 242 .remove_new = acp_acp70_audio_remove, 243 .driver = { 244 .name = "acp_asoc_acp70", 245 .pm = &acp70_dma_pm_ops, 246 }, 247 }; 248 249 module_platform_driver(acp70_driver); 250 251 MODULE_DESCRIPTION("AMD ACP ACP70 Driver"); 252 MODULE_IMPORT_NS(SND_SOC_ACP_COMMON); 253 MODULE_LICENSE("Dual BSD/GPL"); 254 MODULE_ALIAS("platform:" DRV_NAME); 255